<?php
error_reporting(E_ALL);
set_time_limit(0);

date_default_timezone_set('Europe/London');
?>
<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />

        <title>PHPExcel Examples</title>

    </head>
    <body>

        <?php
        $exampleTypeList = glob('./*', GLOB_ONLYDIR);

        foreach ($exampleTypeList as $exampleType) {

            echo '<h1>PHPExcel ' . pathinfo($exampleType, PATHINFO_BASENAME) . ' Examples</h1>';

            $exampleList = glob('./' . $exampleType . '/*.php');

            foreach ($exampleList as $exampleFile) {
                $fileData = file_get_contents($exampleFile);

                $h1Pattern = '#<h1>(.*?)</h1>#';
                $h2Pattern = '#<h2>(.*?)</h2>#';

                if (preg_match($h1Pattern, $fileData, $out)) {
                    $h1Text = $out[1];
                    $h2Text = (preg_match($h2Pattern, $fileData, $out)) ? $out[1] : '';

                    echo '<a href="', $exampleFile, '">', $h1Text, '</a><br />';
                    if (($h2Text > '') &&
                            (pathinfo($exampleType, PATHINFO_BASENAME) != 'Calculations')) {
                        echo $h2Text, '<br />';
                    }
                }
            }
        }
        ?>
    <body>
</html>